Precompressor for baling presses



Nov. 4, 1952 H. w. JONES ET AL 2,616,312

PRECOMPRESSOR FOR BALING PRESSES Filed April 25, 1949 5 Sheets-Sheet 1 IN V EN TORS Harry W Jones BY GMQFOIC! GLazer.

(la/mam,Auamr mrm NOV. 4, 1952 w JONES ETAL 2,616,312

PRECOMPRESSOR FOR BAKING PRESSES Filed April- 25, 1949 5 Sheets-Sheet 2 INVENTORS Harry W Ja s y GLLAEQfOI'd WW /mum NOV. 4, 1952 H, w, JONES ETAL 2,616,312

PRECOMPRESSOR FOR BALING PRESSES Fiaed April 25, 1949 5 Sheets-Sheet 3 IN VEN TORS Harry W Jones y auigford Glaze).

ATTORNEYS PRECOMPRESSOR FOR BALING PRESSES Filed April 25, 1949 5 Sheets-Sheet 4 I IN VEN TORS Harry W Jones BY Guflford Glaze]:

ATTORNEYS NOV. 4, 1952 H, w JONES r 2,616,312

PRECOMPRESSOR FOR BALING PRESSES Filed April 25, 1949 5 SheetsSheet 5 I N VEN TORS Harry W- Jones By GuflfOrd Glaze):

Carat/A011 ffmwmdm ATTORNEYS Patented Nov. 4, 1952 UNITED STATES i PRECOMPRESSOR FOR BALING,PRESSES..

Harry W.'Jo'nes and-'Guili'ord Glazer, Knoxville Tenn., assignors E to Dempster=B1iothers;-Iricor porated, Knoxville, Tenn;, azcorporation xof:

Tennessee 1 Claim.

This invention relates to baling-presses, and" terial to-be baled is dumped in any suitable way;

after'which the top opening in the charging box is closed by ahorizontally movable door which slides on the top of the box into cooperating relationship with certain wedging mechanism at the forward end of the box.- Thereafter suitable compression heads, operable by rams disposed at right angles to each other, are operated in sequence to crush and compress the material into a bale. As is apparent, material charged into the box must not project above the edge of the box because any material projecting through the open top of the box will interfere with the closing of the door. Furthermore, it is desirable that the material in the box be disposed compactly so that the ultimate :bale will contain as much material as permitted by the capacity'of the press to crush and compress the charge. To avoid upwardly projecting material and to secure compactness of the charge in the box preliminarily to the baling operations considerable manual labor has necessarily been entailed in arranging the material in the box; It is also common practice for foot tamping to be applied to the charge'in' order to compact it in the box, butthe effectiveness-of this manner of compacting the charge is limited by the weight of the workmanand manual rearrangement of pieces within the box is frequently required even when foot tamping is used.

It isan object of this invention to provide a baling press of the character referred to with mechanical means for compacting the charge inthe box and thereby avoiding the necessity for manual arrangement of the pieces or foot tamping.

Another object of this invention is to -provide animproved device of the type characterized which-is'capable of producing such acompact charge in the box preliminarily to the baling operations as would otherwise be obtained only by the exercise of extreme care inarranging the charge in theboxl 1 Another object of this invention is-to-provide' an improved device of the=typecharacterized whichfacilitates the use i of mechanical --means for dumping the charge into the chargingbox by" 2;? avoiding the necessity for rearrangement'of the charge after it has "been dumped Another objectof this "invention is *to provide an improved device of the-typecharacterized which -may' be readily applied to existing pressesas well as incorporated in new presses,- and'which is of such character that it may be readilyoperated by unskilled labor.

Another object of this invention is to provide an improved device of the type characterized which is strong and durable, composed of parts that are inexpensive to fabricate and assemble,- and simple in operation".

Other-objects will appear as the description of the invention proceeds.

By way of summarypthe present inventionincludes a compacting device associatedwith the charging box and its door and compression heads and provided with-mechanical operating means, preferably a fluid-operated device; for'moving said compacting device bodily into and out of the open top of the charging box'to' compressthe charge therein, so as not only to freethe opening of the box from upwardly projectin pieces which would interfere with the closing of the door but also to effect a compacting of the'charge in th box by mechanically-applied pressure.

The invention is. capable of receiving'avariety of mechanical expressions, two of which have been illustrated on the accompanying drawings, but it is 'to be expressly'understood. that the drawings are for purposes of illustration only, andare not to be interpreted as a definition of 'the limits of the invention; reference-being had to the appended claim for that purpose.-

In. the accompanying drawings wherein the component mechanism of the baling press,to--'the extent that it is already available on the market; has been, shown"diagrammaticallyto avoid com-- plication as to details constituting no part of the present. invention; 7

Fig; 1 is a side elevation of abaling'pressincorporating the present invention;

Fig. 2 is an end view of'the baling ress-of" Fi'gg l;

Fig. i3 is a side viewrto an "enlarged'scale; of the compacting device and its operating mecha nism';

Fig. 4 is a top view-of the-mechanismshown in Figx'3; and

Fig: 5 is aside view ofanalternative embodi ment ofthe compactingdeviceand its operatingmechanism.

Referring detail to the accompanying draw ings, wherein the same reference" characters are employed in'the several figures-to designate corresponding parts; I 0 is a base frame; of any-suit able sizeand construction; with which a'sso-- ciated-a'rectangular ch'arging box It," of-=any suitable size and construction, having an open top I2.

Slidably mounted on the base frame I is a door I3, shown in its open position in Fig, 1, the forward end of the door being designated I4. Door I3 is mounted on suitable rollers I5 and I6 so that it may he slid to the right as viewed in Fig. 1 to close the open mouth I2 in the box II. in which latter position the forward end I4 of the door cooperates with suitable wedging mechanism carried by a suitable bracket I! to lock the door against upward movement. To slide the door into and out of its closed position said door is connected by any suitable connecting means I8 to the piston rod I9 of a hydraulic ram 20 supported in any suitable brackets 2| from the base frame II). The frame also carries an oil tank 22 on which is mounted a motor 23 for driving a suitable pump to develop hydrostatic pressure for use in the ram 26 and in the other hydraulic devices to be referred to. Suitable controls are indicated at 25.

Referring to Fig. 2, a hopper 26 is pivotally mounted in association with one side of the charging box II, and is actuated by a hydraulic device 2? so that when the material to be baled has been delivered to the hopper 28 in any suitable way the hopper may be swung from the Dosition shown in Fig. 2 to an inverted position sufficient to dump its contents into the open mouth I2 of the charging box.

The rear side of the charging box is constituted by a main compression head 28, shown in dotted lines in Fig. l and in full lines in Fig. 5, said main compression head being connected to the piston rod 29 of a hydraulic ram 38 carried by the base frame I0. After the door I3 is closed and locked, the ram 30 is operated to move the main compression head, to the right as viewed in Fig. 1, to crush and compress the material into the righthand end of the box I I as viewed in Fig. 1. That portion of a side wall of the box which is at right angles to the main compression head 28 and which is located at the forward end of the box II as viewed in Fig. 1 is constituted by a second compression head 3|, as shown in Fig. 2, that is connected to the piston rod 32 of a hydraulic ram 33 also carried by the base frame IE]. When the main compression head 28 has completed its forward stroke, ram 33 is actuated to move the compression head 3I at right angles to the main compression stroke to crush and compress the charge into that corner of the box which is at the forward end of the box and opposite the ram 33, completing the bale. That portion of the bottom wall of the box which underlies the completed bale is constituted by the head of a hydraulic device 34, carried by a suitable support 35 at the underside of the box H, so that upon actuation of the hydraulic device 34 the finished bale, after the compression heads 28 and M have been withdrawn and the door I3 has been opened, may be elevated to at least the level of the open top of the box I I to facilitate removal of the bale.

A suitable hydraulic system is connected to the several hydraulic devices and includes suitable valves for admitting hydrostatic pressure to the hydraulic devices in proper sequence to effect the closure of the door I3, the successive movement of the compression heads 28 and ti on their baling strokes, and the actuation of the ejecting mechanism 34, all as well understood in the art. As the mechanism so far described is to be found in baling presses already on the market, further description of the details of construction, ar-

4 rangement and operation thereof is deemed unnecessary.

In conformity with the present invention an auxiliary compacting device is pivotally mounted at the side of the charging box I I and mechanically operated, preferably by fluid pressure, to compact the charge dumped into the charging box II, as by the hopper 26, as well as to free the open top I2 of said box to permit closure of the door I3.

Referring now particularly to Figs. 3 and 4, a platform 40 is provided in any suitable way at the side of the box, being shown as attached to the side of the box and supported from the base frame III by one or more suitable braces M to provide adequate strength and rigidity. Spaced bearing blocks 42 are secured to said platform in any suitable Way, as by bolts and nuts 43, and pivotally mounted in said bearing blocks 42 is a stub shaft 44. Secured to said stub shaft 44 adjacent the bearing blocks 42 are a pair of arms 45, which may be of any suitable construction to afford adequate strength and rigidity, being shown as of generally triangular shape in side view and formed of plates and angle irons so as to have a generally box-like formation. Secured to said arms in any suitable way is a compacting device 46 which may also be of any suitable construction so as to afford adequate strength and rigidity, said device being commonly referred to as a compression door and being so termed hereinafter. As illustrated, said door has a generally rectangular box-like body portion 41, which may be built up of I beams and plates, provided with suitable reinforcing members 48, which may be extensions of the arms 45 and be formed of plates and angle irons, and transverse reinforcing plates 49, one of which designated 50 is secured to a rigid transverse member 5| which is also rigidly secured to the reinforcing members 48, said plate 50 and transverse member 45 being also rigidly secured to the arms 45 in any suitable way. The under face of the body 4'! of the compression door is also preferably provided with a plurality of transversely extending projecting members 52 to aid in the compacting action by applying localized pressures on the material in the box and to resist transverse movement of said material under the pressure of the door.

Platform 40 also carries rigid elongated members 53 of any suitable construction forming a fluid connections, not shown (compare 18 in Fig.

5), for admitting hydraulic fluid thereto to effect the operation next to be described.

The normal position of the compression door 46 is shown in Fig. 2, i. e., with the compression door 46 in an upright position so as not to obstruct the open top of the charging box I I. When a charge has been delivered to said charging box II, as by the hopper 2B, hydraulic fluid is admitted to that end of the cylinder 51 which is adjacent its pivotal mounting, whereupon through the actuation of the piston rod 58 pivotally connected to the door 46 at 59, 60, said door is swung from the position shown in Fig. 2

to the position shown in Fig. 3. The compression door in plan is of such size as substantially to fill with small clearance the open top l2 of the charging box H as shown in Fig. 4, and therefore the movement of the compression door 46 to or toward the position shown in Fig. 3 will force into the box any pieces projecting through the open top of the box and also compact the material in the box. The compression door may, if desired, be operated a plurality of times during the filling of the box ll so as to assure that the charge therein is tamped to maximum compactness. When through operation of the compression door the charge has been adequately compacted and the opening at the top thereof freed of any projecting pieces, the compression door is returned to the position shown in Fig. 2 through admission of hydraulic fluid to the opposite end of the cylinder 51, and thereafter the door I3 is closed as before explained, whereupon the baling operation proceeds to the completion of the bale and the ejection of the same.

Fig. 5 illustrates an alternative embodiment wherein the compression door 46 has a, box-like body 6|, which may be of the same or similar construction to that above referred to with respect .to the body 41, the under face of the compression door being shown as provided with projecting members 62 for the purpose above referred to. Secured to the upper portion of the compression door 46, and shown as constituting reinforcing members for the door, are a pair of arms 63 pivotally mounted at 64 on lugs 65 provided in any suitable way on a suitable support at the side of the box. Pivotally connected to the arms 63 at 66 is a link 61 which is pivotally connected at 68 to a second link 69 that is pivotally mounted at 10 on lugs H provided in any suitable way on an upright 12 associated in any suitable way with the base frame [0. Also pivotally mounted on said upright 12 as by lugs 13 and a pivot pin 14 is a hydraulic cylinder I5 having a piston rod 16 and fluid connections I8, said piston rod being pivotally connected to the links 61 and 69 at the pivotal connection 68.

While the charging box II is being filled the hydraulic mechanism 15, I6 is contracted to swing the compression door 46 to an upright position in which position it may be stopped by a suitable stop member I! provided in any suitable way on the upright 12. When the charge in the box II is to be compacted, fluid pressure is admitted to the cylinder to force the compression door 46 to or toward the position shown in Fig. 5 so as to free the open top of the box from upwardly projecting pieces and compact the charge in the box as before described. When the compacting operation has been completed the compression door is returned to its upwardly extending position, whereupon the door l3 may be closed as before explained and the bailing operations proceeded with.

It will therefore be preceived that by the present invention a bailing press has been provided with a compression door which may be operated from the same hydraulic system that is provided for actuating the other hydraulic devices already provided on the bailing press and which, when operated, exerts a compacting pressure on the charge in the box which is far in excess of what can be obtained by foot tamping and which assures the freeing of the open top of the box from upwardly projecting pieces as well as a compacting of the material in the box to an extent which could otherwise be obtained only by the exercise of great care in manually arranging the material in the box.

The compression door and its operating mechanism can be readily added to existing baling presses as well as incorporated in new presses, and in view of the simplicity of the operation thereof no particular skill is required to operate the same. The compression door may be readily built up of angle irons and plates with suitable reinforcement members so as to give it adequate rigidity and strength without excessive weight, and the component parts of the door and its operating mechanism are all of simple construction so that the parts are inexpensive to fabricate and assemble. Thereby a strong, durable and highly eflicient compression door has been provided which assures compacting of the charge without involving the manual labor or foot tamping heretofore required to secure maximum compactness in the box as well as the freeing of the open top of the box from upwardly projecting pieces. Therefore, the invention facilitates the use of mechanical loading means, such as the hopper referred to, because the charge may be properly compacted after it is dumped into the charging box notwithstanding the heterogenous condition of the charge resulting from the use of a mechanical loader.

While the embodiments of the invention illustrated on the drawings have been described with considerable particularity, it is to be expressly understood that the invention is not limited thereto, as the same may receive a variety of expressions, which will now be apparent to those skilled in the art, while changes may be made in the details of construction, arrangement, proportion, size, etc., and parts illustrated may be replaced by equivalent parts, without departing from the spirit of the present invention. Reference is therefore to be had to the claim hereto appended for a definition of the invention.

What is claimed is:

A baling press comprising a charging container having an open top, a bottom, and sides, a door arranged to close said open top, compression plunger means forming at least one of said sides and movable inwardly under said door when closed, and a pre-compacting means comprising a tamping head, a supporting arm attached to said head and pivotally mounted adjacent said open top, and operating means connected to said arm for swinging said tamping head into and out of said container through said open top.

HARRY W. JONES. GUILFORD GLAZE'R.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,766,642 Jacobson et a1. June 24, 1930' 1,812,797 Lindemann June 30, 1931 1,879,356 Lindemann Sept. 27, 1932 FOREIGN PATENTS Number Country Date 320,437 Italy Dec. 20, 1932 489,229 Germany Dec. 24, 1929 

